You run the risk of getting paralyzed if you miss, but other than that Focus Blast is generally preferred. A lot of players are running NP / Focus Blast / Fire Blast / Vacuum Wave, which leaves Dragonite to set up on it. I wouldn't be surprised if we start to see NP / Focus Blast / Vacuum Wave / HP Ice because Focus Blast pretty much annihilates any steels (107.9% minimum to 252 HP / 0 SpD Jirachi), while HP Ice covers Celebi for the most part (84.2%-99% to 252 HP / 0 SpD). This is assuming a Nasty Plot boost and Life Orb, of course. I can't really see any use for Fire Blast anymore (on the NP set), unless you don't plan on getting the boost.Tell me I've made a mistake here somewhere:
+2 LO Naive Infernape Focus Blast vs 4/252 Calm Blissey: 78.22% - 92.02%
Now I don't see all that many reasons to run Close Combat any more... Especially since that blob is OHKO'd after two SR switch-ins.